Artificial resinous body



Patented Nov. 4,1924.

isiasoz rec,

ARTIFICIAL RESIN'OUS EBQDY.

To all whom it may concern: 1

Be it known that I, FREDERICK D. CRANE,

a citizen of the United States, and having a post-ofiice address at No.74: North Willow 5 Street, Montclair, county of Essex, and

State of New Jersey, have invented certain new and useful Improvementsin Artificial Resinous Bodies, of which the following is aspecification.

16 My invention relates to artificial resinous bodies.

in accordance with the-present invention artificial resinous bodies areproduced by reacting upon an aromatic compound having a benzene ring andone or more attached aliphatic groups, in at least one of which ahalogen atom has been sumtituted, with a compound of the resinous acidor, acids in which a metal has been substituted for the acid hydrogen. I

Aromatic compounds suitable for use in making the product of the presentinvention may be, for example, such compounds as benzyl chloride,chlor-xylene, and the like, and suitable rosin acids for use in thisconnection are, for example, those of pine resins, ordinarily calledabietic acids.

The following exples illustrate manners in which the new product may bemade,

A suitable compound is derived from the abietic acid of resin with analkali such as caustic potash in the follow en: 98 parts of rosin areheated wit I1 12 parts of caustic potash and 400 parts of water, and theso called resene, or insoluble portion,.,may be tered out, if desired,To the mixture obtained are added 3? parts of commercial benz l coride,and the resulting mixture is boiled under a reflux condenser for aboutfour hours. The excess benzyl chloride is then removed, preferably bysteam distillation, A. were mass, somewhat se ter than'the orial resin,is groduced, having a brosh color, the

epth of which varies with the quality oi rosin used,

Instead of benzyl chloride, chlor xylene may be substituted in the aboveexample, the molecular equivalent thereof being used. The chlor xylenema if desired, be pre pared by the intruction or chlorine into xylene bythe usual chlorination method, the equivalent quality of resultingchlorinated 'abietic acid of resin in the manner above Application filedSeptember 30, 1920. Serial No. 413,890.

compound being then determined by estimation of the chlorine content.The presence of unchlorinated xylene does not inhibit reaction. Aresinous product of the same general character as that derived by theuse of the benzyl chloride, being somewhat harder, is produced, Thecorresponding brom-derivative, such as benzyl bromide, brom toluene,etc., may likewise be employed.

The resinous bodies obtained from the described may be hydrogenated, ifdesir, or oxygen may be added thereto by treatment with ozone. In eithercase the stability of the molecule of the resinous com pound isimproved. The resinous compound may likewise be vulcanized by theaddition of sulphur and moderate heating, with the formation of ahardened product having the characteristics of varnish f m.

Before treatment with the alkali an the aromatic compounds of thecharacter described, the rosin may be subjected to the action of analcoholic solution of hydrochloric acid, which is generally regarded asresulting in the splitting of the abietic acid into two acids havinggenerally similar properties to the abietic acid. The proportion of thehalogenated aromatic compound used in this case must be doubled, themethod of procedure otherwise remaining the same, The resulting resinouscompound is of the same general character as that derived from theabietic acid, being, however, somewhat softer,

The acidic varnish gums, such as animal or elemi,'may-be substituted forthe resins in the examples above given The prod ct resulting from thepresent invention n ,y be utilized in the production of chewing gums,varnishes, plastics, sizing, wamrproot at ingmaterial for papers, andgenerally as substitutes for resinous and varnish gums,

fit is believed that the resinous bodies obtained as above described areof the char acter oi": esters, the composition of which may be generallyexpressed by the formula RCOU t, in which l t represents the radical ofthe acid constituent of the rosin, and --l-lF- represents an aromaticbody lllil having a benzene ring to which one or more its aliphaticgroups are attached,

The examples and theory above recited I claim: i are given for thepurpose of affording an 1. As a new article of manufacture, a 10understanding of the invention and ways benzyl ester of a resinous acidmaterial.

in which-it may be carried out; but it is 2. As a new article ofmanufacture, an 5 not intended that the details of the examples esterbenzyl resinate or abietate. I nor the theories hereinbefore expressedare In Witness whereof, I have signed my to be regarded as limitationson the scope name hereto. of the invention. FREDERICK D. CRANE.

